Means for inking porous metallic type



Nov. 18, 1941. J (:QMPTON 2,262,884

MEANS FOR INKING POROUS METALLIC TYPE ori inal Filed July 11, 1938 Justin S. Compfim Inventor His Attorney July 11,1938.

I invention is to provide means whereby porous metallic printing membersmay I PatentedNov. 18, 1941 UNITED- STATES PATENT OFFICE DEANS FOB INKING POROUS METALLIC I The National Cash Justin S. Compton. Lebanon, Ohio, assignor to Resistor Company, Dayton,

Ohio, a corporation of Maryland Original a, 1940, Serial No.359,418

6 Claims. (Cl. 101-321) This invention'relates to novel means for supplying ink to type members made of porous metal. a

The instant application is a division of an application for Letters Patent of the United States, Serial No. 218,561, flied by Justin S. Compton on An object of this be supplied with printing fluids by means of wicks which conduct the fluid from a source,

through the supporting structure of the printing member, to the type face surface of the printing member, which surface by that means is 'kept constantly wet thereby.

Another object of this invention is to provide a supporting means for a porous metallic printing member, which supporting means is capable of supporting the member for movement thereon and at the same time is capable of supplying ink to the type portion of the member through the surface of the member'which engages the supporting means.

Another object of this invention is to provide a I shaft forsupporting' porous metal type members for rotation thereon, said shaft having means to The instant invention proposes to supply ink to such a type member by conducting ink from a font or other source by means associated with the supporting means.

With these and incidental objects in the invention includes certain novel featur of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawing which accompanies and forms a part of'this specification.

The flgure shows a porous metallic wheel which is saturated by a wick contacting it through the supporting member.

The conduction ofprinting fluid from a font to a type member by means carried by the supporting member is shown in the flgure as applied to a rotatable type wheel it supported on a shaft II. The wick I, made of felt. or other suitable wick material, has one end dipped in a font ll of liquid, whence it enters an axial boring IS in the supporting shaft of the type wheel. Radial holes I! in the shaft at the place where the wheel is mounted accommodate branches III of the wick ll, so that they may come into contact with the bearing surface of the type wheel. In this manner the type wheel may be kept saturated with fluid even though the wheel'rotates. Sleeves I! mounted on the shaft keep the wheel alined with the radial holes. 7 While form of mechanism hereinlshown and describedis admirably adapted to fulfill the objects primarily stated, it is to be understood as that it is not intended to conflne the invention to of, said pores being of such size that they absorb and hold fluids by a" capillary diffusing action. The surface fllm of fluid at the pore openings may be transferredto material to be printed, by contact therewith, which transferred fluids are replaced .from within by difl'usion the one form or embodiment herein disclosed, for his susceptible of embodimentin various forms I coming within-the scope of the claims which follow. v

40 Whatisclaimedis:

through said pores. Obviously the metal used must be w'ettable by the particular fluid used. The use of 70% copper and 30% nickel has been found suitable for use with non-volatile dye inks commonly used for type printing, being wettable thereby and hard enough to resist wear. The particular-kind of metal used in the structure is 1. The combination of a porous metallic type wheel; a'shaft having axial and radial holes, upon which shaft the type wheel is rotatably molmted; a wick occupying the holes in the shaft sothatthewickcontactsthesurfaceofthetype' wheel bearing on the shaft; and a. font of fluid in which a portion of the wick projecting from the axial hole is submerged so that said fluid thewheel is mounted; a wick occupying the bor-' urated and in turn saturates the type wheel.

3. The combination of a porous metallic type wheel having a printing surface and a bearing surface; an axle rotatably supporting said type wheel; an ink supply source; and means carried by said axle and coacting with said ink source and the bearing surface of said type wheel, to provide a continuous saturation of ink in the type wheeL.

4. The combination of a porous metallic type member having a printing surface and a bearing surface; means engaging said bearing surface to support the type member for movement thereon; a font of ink; and ink-conducting means associated with the first-mentioned means and extending into said ink and to said bearing surface to conduct ink from said font to the printing surface of the type member through the bearing surface of said member.

5. The combination of a porous metallic type wheel having a printing surface and a. bearing surface; an axle rotatably supporting said type wheel; and ink-saturated means carried by said 'axle and coacting with the bearing surface of said type wheel, to provide a continuous saturation of ink in the type wheel..

6. The combination of a porous type member having a printing surface and a bearing surface; means engaging said bearing surface to support the type member for movement thereon; and ink-supplying means associated with the first-mentioned means and engaging said hearing surface, to replenish ink used from the printing surface by supplying ink from the ink-supo plying means through said bearing. surface of the type member. JUSTIN S. COMPTON. 

